{"id":725859,"url":"https://alion.io/job/poseidonaero-mechanical-engineer","title":"Mechanical Engineer","company":{"id":686447,"name":"Poseidon Aerospace","domain":"poseidonaero.com","url":"https://alion.io/company/poseidonaero","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Alameda, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":78000,"max_usd":183000,"period":"year","method":"role_country_seniority_unknown","sample_n":15150},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"SolidWorks","optional":false},{"name":"MATLAB","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-09-05T03:10:43Z","employer_posted_date":"2026-09-05","last_verified_at":"2026-11-04T19:15:45Z","board_verified":true,"closed_at":null,"days_open":60,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":60},"description":"About Poseidon Aerospace:\nPoseidon Aerospace is reimagining how the world moves goods. We build and operate full-size autonomous cargo aircraft - capable of carrying two tons of payload over a thousand nautical miles. From remote communities to contested logistics operations, our platforms unlock a new cost curve for air freight, making it faster, cheaper, and accessible anywhere it's needed. Headquartered in the San Francisco Bay Area with locations in Washington DC, Oregon, and Maine; we're building something consequential.\nWe encourage candidates without at least a year of full-time, post graduation work experience to apply to our Mechanical Engineer (New Graduate) job posting\nAs a Mechanical Engineer at Poseidon Aerospace, you will design the structural and mechanical systems that make our composite aircraft functional and manufacturable. You will work across CAD design, mechanism development, and finite element analysis to create reliable, lightweight structures suited for flight and marine environments. This role is both analytical and hands-on, involving close collaboration with manufacturing, aerodynamics, and test teams to bring designs from concept to flight hardware.\nResponsibilities:\nDesign and develop aircraft structures, mechanisms, and tooling using CAD software\n\nPerform FEA to validate strength, stiffness, and load paths in composite and metallic components\n\nCreate detailed part/assembly drawings and documentation for manufacturing and inspection\n\nDesign linkages, control surface mechanisms, and mounting systems for aircraft subsystems\n\nCollaborate with manufacturing engineers to ensure designs are practical, cost-effective, and easy to assemble\n\nSupport testing and validation of structural and mechanical systems, including fixture and rig design\n\nMaintain CAD libraries, revision control, and configuration management for aircraft assemblies\n\nProvide design feedback to improve manufacturability, maintainability, and structural efficiency\n\nIdeal Qualifications:\nDegree in Mechanical Engineering, Aerospace Engineering, or a related field\n\nProficiency with CAD software such as Fusion,, SolidWorks, CATIA, or NX\n\nStrong understanding of structural design, stress analysis, and mechanical systems\n\nExperience with FEA tools such as ANSYS, Fusion Simulation, Nastran, or similar\n\nAbility to apply GD&T and mechanical tolerancing to production drawings\n\nFamiliarity with composite and metallic fabrication methods\n\nUnderstanding of fundamentals of flight mechanics and aircraft dynamics\n\nComfortable working hands-on with prototypes, test articles, and shop tools\n\nCapable of managing projects independently in a fast-paced, startup environment\n\nNice to Have:\nExperience with bonded composite structures or hybrid assemblies\n\nBackground in actuation systems, linkages, or motion mechanisms\n\nKnowledge of vibration, fatigue, or modal analysis\n\nHands-on experience with machining, additive manufacturing, or assembly tooling\n\nFamiliarity with design for manufacturing (DFM) and design for assembly (DFA)\n\nProficiency in MATLAB or Python for analysis and process automation\n\nExposure to aerospace certification or flight test environments\n\nWhat you get from us\nCompetitive salary and meaningful early-stage equity\n\nRelocation support if applicable\n\nEmployee Health Benefit Plans\n\n6% Retirement matching\n\nFlexible PTO\n\nFree lunches, snacks, and a stocked fridge at our offices\n\nAI tools and subscriptions","description_format":"text","description_chars":3444,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":true,"industries":["Transportation & Logistics","Logistics","Air 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